Koss HB70 Infrared Stereophone System with Transmitter & Wireless Headphone Receiver, 30-15,000 Hz Frequency Response

The Koss HB70 is a infrared stereophone system with 30-15,000 Hz of frequency response. The HB70 Infrared (line of sight) stereophone system consists of a single channel wireless stereophone and a compact infrared transmitter. Incorporating infrared technology, the HB70 is ideal for home audio, video and computer use.

The transmitter connects to most home systems through a 3.5mm headphone jack or audio output. Utilizing infrared (IR) technology, it transmits an invisible, infrared signal to the headphone which then reproduces the audio signal. Unlike conventional wireless systems the HB70 is relatively small and lightweight for extended listening periods. When a conventional headband is too cumbersome, the HB70 behind-the-head stereophone provides maximum comfort during extended wearing periods while providing the same excellent sound of Koss.

A volume control is placed on the earcup for convenient level adjustment. Foam cushions rest on the ear and provide an open, airy sound that allows the user to stay in touch with their environment. The stereophone requires 2 "AAA" batteries.